Poly(arylazophosphonate)s:  A New Polymer Class with Arylazophosphonate Units in the Main Chain

Abstract

Poly(arylazophosphonate)s are synthesized from bifunctional diazonium salts and bifunctional phosphoric diesters by interfacial polycondensation at the interface water/organic solvent. The azo unit is formed via N-P coupling during the polycondensation reaction in satisfying yield and selectivity. Fifteen new polymers were synthesized and characterized by common methods such as 1H, 13C, and 31P NMR, FTIR, UV/visible spectroscopy, and DSC and GPC measurements. According to first laser ablation experiments as well as film forming properties and thermal and photochemical behavior, poly(arylazophosphonate)s seem to be suitable materials for ablation with XeCl excimer lasers.

Arylazophosphonate containing polymers designed for XeCl excimer laser ablation

“…The synthesis of the poly(arylazophosphonate)s and their analytical data have been intensively described previously 15) . A brief summary is given here (Tab.…”

“…In the present work a new class of polymers was prepared which contained the arylazophosphonate group in the back bone. Fifteen different poly(arylazophosphonate)s (Scheme 1) were synthesized from bifunctional diazonium salt monomers and bifunctional phosphoric diester monomers applying the N-P coupling technique, which is convenient for arylazophosphonates 15) .…”

Poly(arylazophosphonates): New Arylazophosphonate-Containing Polyurethanes and Polyesters for Laser Ablation Structuring

“…[11] These polymers were prepared by a direct synthesis method (Scheme 1) in which the arylazophosphonate units were formed during the polycondensation with N-P coupling of bifunctional diazonium salts and bifunctional phosphoric diesters. [12] The advantage of this direct route is the onestep preparation, at the expense of a low polymer yield because of a high amount of crosslinked byproducts.…”

Poly(arylazophosphonate)s: New Arylazophosphonate-Containing Monomers for Synthesis of Laser-Structurable Polymers

“…[1,2] Applying the N1P coupling technique, [3] poly(arylazophosphonate)s have previously been synthesized by interfacial polycondensation from bifunctional diazonium salts and bifunctional phosphoric diesters. [4] An alternative synthesis route is the polyreaction of functionalized azophosphonate-containing monomers with suitable comonomers. Here we report the preparation of hydroxyfunctionalized azophosphonate-containing monomers, and their additional polycondensation with bifunctional isocyanate comonomers.…”